sjero.net Git - linphone/blob - coreapi/linphonecall.c

   1
   2 /*
   3 linphone
   4 Copyright (C) 2010  Belledonne Communications SARL
   5  (simon.morlat@linphone.org)
   6
   7 This program is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU General Public License
   9 as published by the Free Software Foundation; either version 2
  10 of the License, or (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20 */
  21 #ifdef WIN32
  22 #include <time.h>
  23 #endif
  24 #include "linphonecore.h"
  25 #include "sipsetup.h"
  26 #include "lpconfig.h"
  27 #include "private.h"
  28
  29
  30
  31
  32 static MSList *make_codec_list(LinphoneCore *lc, const MSList *codecs, bool_t only_one_codec){
  33         MSList *l=NULL;
  34         const MSList *it;
  35         for(it=codecs;it!=NULL;it=it->next){
  36                 PayloadType *pt=(PayloadType*)it->data;
  37                 if ((pt->flags & PAYLOAD_TYPE_ENABLED) && linphone_core_check_payload_type_usability(lc,pt)){
  38                         l=ms_list_append(l,payload_type_clone(pt));
  39                         if (only_one_codec) break;
  40                 }
  41         }
  42         return l;
  43 }
  44
  45 static SalMediaDescription *create_local_media_description(LinphoneCore *lc,
  46                 const char *localip, const char *username, bool_t only_one_codec){
  47         MSList *l;
  48         PayloadType *pt;
  49         SalMediaDescription *md=sal_media_description_new();
  50         md->nstreams=1;
  51         strncpy(md->addr,localip,sizeof(md->addr));
  52         strncpy(md->username,username,sizeof(md->username));
  53         md->bandwidth=linphone_core_get_download_bandwidth(lc);
  54         /*set audio capabilities */
  55         strncpy(md->streams[0].addr,localip,sizeof(md->streams[0].addr));
  56         md->streams[0].port=linphone_core_get_audio_port(lc);
  57         md->streams[0].proto=SalProtoRtpAvp;
  58         md->streams[0].type=SalAudio;
  59         md->streams[0].ptime=lc->net_conf.down_ptime;
  60         l=make_codec_list(lc,lc->codecs_conf.audio_codecs,only_one_codec);
  61         pt=payload_type_clone(rtp_profile_get_payload_from_mime(&av_profile,"telephone-event"));
  62         l=ms_list_append(l,pt);
  63         md->streams[0].payloads=l;
  64
  65         if (lc->dw_audio_bw>0)
  66                 md->streams[0].bandwidth=lc->dw_audio_bw;
  67
  68         if (linphone_core_video_enabled (lc)){
  69                 md->nstreams++;
  70                 md->streams[1].port=linphone_core_get_video_port(lc);
  71                 md->streams[1].proto=SalProtoRtpAvp;
  72                 md->streams[1].type=SalVideo;
  73                 l=make_codec_list(lc,lc->codecs_conf.video_codecs,only_one_codec);
  74                 md->streams[1].payloads=l;
  75                 if (lc->dw_video_bw)
  76                         md->streams[1].bandwidth=lc->dw_video_bw;
  77         }
  78         return md;
  79 }
  80
  81 static void linphone_call_init_common(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
  82         call->refcnt=1;
  83         call->state=LinphoneCallInit;
  84         call->start_time=time(NULL);
  85         call->media_start_time=0;
  86         call->log=linphone_call_log_new(call, from, to);
  87         linphone_core_notify_all_friends(call->core,LINPHONE_STATUS_ONTHEPHONE);
  88         if (linphone_core_get_firewall_policy(call->core)==LINPHONE_POLICY_USE_STUN)
  89                 linphone_core_run_stun_tests(call->core,call);
  90 }
  91
  92 static void discover_mtu(LinphoneCore *lc, const char *remote){
  93         int mtu;
  94         if (lc->net_conf.mtu==0 ){
  95                 /*attempt to discover mtu*/
  96                 mtu=ms_discover_mtu(remote);
  97                 if (mtu>0){
  98                         ms_set_mtu(mtu);
  99                         ms_message("Discovered mtu is %i, RTP payload max size is %i",
 100                                 mtu, ms_get_payload_max_size());
 101                 }
 102         }
 103 }
 104
 105 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to)
 106 {
 107         LinphoneCall *call=ms_new0(LinphoneCall,1);
 108         call->dir=LinphoneCallOutgoing;
 109         call->op=sal_op_new(lc->sal);
 110         sal_op_set_user_pointer(call->op,call);
 111         call->core=lc;
 112         linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
 113         call->localdesc=create_local_media_description (lc,call->localip,
 114                 linphone_address_get_username(from),FALSE);
 115         linphone_call_init_common(call,from,to);
 116         discover_mtu(lc,linphone_address_get_domain (to));
 117         return call;
 118 }
 119
 120 LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
 121         LinphoneCall *call=ms_new0(LinphoneCall,1);
 122         LinphoneAddress *me=linphone_core_get_primary_contact_parsed(lc);
 123         char *to_str;
 124         char *from_str;
 125
 126         call->dir=LinphoneCallIncoming;
 127         sal_op_set_user_pointer(op,call);
 128         call->op=op;
 129         call->core=lc;
 130
 131         if (lc->sip_conf.ping_with_options){
 132                 /*the following sends an option request back to the caller so that
 133                  we get a chance to discover our nat'd address before answering.*/
 134                 call->ping_op=sal_op_new(lc->sal);
 135                 to_str=linphone_address_as_string(to);
 136                 from_str=linphone_address_as_string(from);
 137                 sal_op_set_route(call->ping_op,sal_op_get_network_origin(call->op));
 138                 sal_ping(call->ping_op,to_str,from_str);
 139                 ms_free(to_str);
 140                 ms_free(from_str);
 141         }
 142
 143         linphone_address_clean(from);
 144         linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
 145         call->localdesc=create_local_media_description (lc,call->localip,
 146             linphone_address_get_username(me),lc->sip_conf.only_one_codec);
 147         linphone_call_init_common(call, from, to);
 148         discover_mtu(lc,linphone_address_get_domain(from));
 149         linphone_address_destroy(me);
 150         return call;
 151 }
 152
 153 void linphone_call_set_terminated(LinphoneCall *call){
 154         LinphoneCallStatus status=LinphoneCallAborted;
 155         if (call->state==LinphoneCallAVRunning){
 156                 status=LinphoneCallSuccess;
 157         }
 158         linphone_call_log_completed(call->log,call, status);
 159         call->state=LinphoneCallTerminated;
 160 }
 161
 162 static void linphone_call_destroy(LinphoneCall *obj)
 163 {
 164         linphone_core_notify_all_friends(obj->core,obj->core->prev_mode);
 165
 166         linphone_core_update_allocated_audio_bandwidth(obj->core);
 167         if (obj->op!=NULL) {
 168                 sal_op_release(obj->op);
 169                 obj->op=NULL;
 170         }
 171         if (obj->resultdesc!=NULL) {
 172                 sal_media_description_unref(obj->resultdesc);
 173                 obj->resultdesc=NULL;
 174         }
 175         if (obj->localdesc!=NULL) {
 176                 sal_media_description_unref(obj->localdesc);
 177                 obj->localdesc=NULL;
 178         }
 179         if (obj->ping_op) {
 180                 sal_op_release(obj->ping_op);
 181         }
 182         if(linphone_core_del_call(obj->core,obj) != 0)
 183         {
 184                 ms_error("could not remove the call from the list !!!");
 185         }
 186         if(obj == linphone_core_get_current_call(obj->core))
 187         {
 188                 ms_message("destroying the current call\n");
 189                 linphone_core_unset_the_current_call(obj->core);
 190         }
 191         ms_free(obj);
 192 }
 193
 194 void linphone_call_ref(LinphoneCall *obj){
 195         obj->refcnt++;
 196 }
 197
 198 void linphone_call_unref(LinphoneCall *obj){
 199         obj->refcnt--;
 200         if (obj->refcnt==0)
 201                 linphone_call_destroy(obj);
 202 }
 203
 204 bool_t linphone_call_paused(LinphoneCall *call){
 205         return call->state==LinphoneCallPaused;
 206 }
 207
 208 const LinphoneAddress * linphone_call_get_remote_address(const LinphoneCall *call){
 209         return call->dir==LinphoneCallIncoming ? call->log->from : call->log->to;
 210 }
 211
 212 char *linphone_call_get_remote_address_as_string(const LinphoneCall *call){
 213         return linphone_address_as_string(linphone_call_get_remote_address(call));
 214 }
 215
 216 LinphoneCallState linphone_call_get_state(const LinphoneCall *call){
 217         return call->state;
 218 }
 219
 220 /**
 221  * Get the user_pointer in the LinphoneCall
 222  *
 223  * @ingroup call_control
 224  *
 225  * return user_pointer an opaque user pointer that can be retrieved at any time
 226 **/
 227 void *linphone_call_get_user_pointer(LinphoneCall *call)
 228 {
 229         return call->user_pointer;
 230 }
 231
 232 /**
 233  * Set the user_pointer in the LinphoneCall
 234  *
 235  * @ingroup call_control
 236  *
 237  * the user_pointer is an opaque user pointer that can be retrieved at any time in the LinphoneCall
 238 **/
 239 void linphone_call_set_user_pointer(LinphoneCall *call, void *user_pointer)
 240 {
 241         call->user_pointer = user_pointer;
 242 }